BERNICLA. CYGNUS. 119 



An introduced species, often found at large, especially in 

 winter. Abundant in North America.] 



Bernicla ruficollis. RED-BREASTED GOOSE. ^T 



Anser ruficollis, Pallas, Spicil. Zool. fasc. vi. p. 21, 

 tab, v. (1769). 



Bernicla ruficollis, Macg. iv. p. 634; Gray, p. 185 ; Gould, 



v. pi. 6 ; Dresser, p. 403. 

 Anser ruficollis, Naum. xi. p. 408; Yarr. ed. 2, iii. p. 170; 



id. ed. 3, iii. p. 174; Harting, p. 156. 

 The Red-breasted Goose, Yarr. ed. 1, iii. p. 80. 

 Ruficollis = red-necked ; from rufus + cottum. 



A very rare straggler to Great Britain. It breeds in North- 

 eastern Siberia, migrating southwards in winter, in one case 

 as far as Northern Egypt. 



Genus CYGNUS, Bechstein, Gemeinn. Naturg. Deutschl. 

 iii. p. 815 (1809). 



Cygnus = the Swan, in classical Latin, the Greek KVKVOS. Of. Ciconia, 



Cygnus olor. MUTE SWAN. 



Anas Olor, Gmelin, Syst. Nat. i. p. 501 (1788). 

 Cygnus olor, Naum. xi. p. 442; Gray, p. 189; Yarr. ed. 2, 



iii. p. 205 ; id. ed. 3, iii. p. 209 ; Gould, v. pi. 8 ; Dresser, 



vi. p. 419. 

 The Mute Swan, Yarr. ed. 1, iii. p. 115. 



Olor a Swan, in classical Latin, especially in poetry ; perhaps a Spanish 

 word. Cf. Welsh alarch. 



Probably introduced many centuries ago ; generally distri- 

 buted in a more or less domesticated condition. It inhabits 

 the Palaearctic Region. 



